Improvement in wick-tubes for lamps



UNITED STATES PATENT OFFICE.

HIRAM W. HAYDEN, OF WATERBURY, GONNEOTICUT, ASSIGNOR TO HOLMES, BOOTH &HAYDENS, OF SAME PLACE.

IMPROVEMENT IN WlCK-TUBES FOR LAMPS.

Specification forming,r part of Letters Patent No. 38,079, dated March31, 1863.

To all whom it may concern:

Be it known that I, HIRAM W. HAYDEN, of 'Waterbnry in the State ofConnecticut, have invented a certain new and useful Improvement inWiek-Tubes for Lamps; and I do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawings, making part of this specification, in which-Figure l is an elevation of a wiek-tube on my improved plan; and Figure2, a cross Ver- :lical section thereof, taken at the line A a of Thesame letters indicate like parts in both figures.

My said invention relates to the method of forming the bearings in flatwick-tubes for the shaft of the spur-wheels, by which the wick iselevated or depressed. I take a metal tube, a, of the required size, andcut through one face of it two parallel slots, b b, in which the twospur-wheels c c work, and by means of suitable tools raise the metal ofthe tube at d between the two slots, and extending the i whole width soas to form a semi-cylindrica] projection. The spur-wheels co are thenheld in place in the slots b b, and the shaft e is then driven into theeye of the`wl1ee1s and under the projection d. The shaft is thus held inplace, the outer surface of the tube outside of the slots b b and theinner surface of the projection d between the slots forming the bearingsfor it to turn in. The outer end of the shaft is to be provided in theusual manner with a rosette or thumb-and-finger wheel.

What I claim as my invention, and desire to secure by Letters Patent,is-- Formin g the bearing or support for the shaft of the wiek-Wheels toturn in by stretching and bending out the metal of the tube between theslots in which the wiek-Wheels work, so as to embrace the shaft betweensuch bent and stretched portion and the outer flat surface of thewiek-tube outside of the slots, substantially as and for the purposespecified.

H. W. HAYDEN.

Witnesses:

NORTON J. BUEL,

THEoDoRE S. BUEL.

